公开(公告)号：EP2136177B1

公开(公告)日：2014-03-26

申请号：EP09162334.8

申请日：2009-06-09

申请人： W.D.M. Limited

发明人： Gardiner, John ,  Willis, Ian

IPC分类号： G01B11/25 ,  G01C7/04 ,  E01C23/01

CPC分类号： G01C7/04 ,  E01C23/01

公开(公告)号：EP3012614B1

公开(公告)日：2016-12-21

申请号：EP15190893.6

申请日：2015-10-21

申请人： W.D.M. Limited

发明人： GARDINER, John L. ,  DAL LAGO, Richard

IPC分类号： G01N19/02 ,  B60T8/172

CPC分类号： G01N19/02 ,  B60T8/172 ,  B60T2210/12

摘要： A friction tester is provided which can measure the friction provided by a surface at a slip speed independent to the speed of travel of the friction tester. The friction tester comprises a vehicle which can travel over a surface at a first speed, and a test element which is driven to a second speed, and a measuring device, wherein the second speed is independently controllable; test element is engaged with the surface; and the first and second speeds are different so that the test element slips over the surface with a slip speed.

公开(公告)号：EP3012614A1

公开(公告)日：2016-04-27

申请号：EP15190893.6

申请日：2015-10-21

申请人： W.D.M. Limited

发明人： GARDINER, John L. ,  DAL LAGO, Richard

IPC分类号： G01N19/02 ,  B60T8/172

CPC分类号： G01N19/02 ,  B60T8/172 ,  B60T2210/12

摘要： A friction tester is provided which can measure the friction provided by a surface at a slip speed independent to the speed of travel of the friction tester. The friction tester comprises a vehicle which can travel over a surface at a first speed, and a test element which is driven to a second speed, and a measuring device, wherein the second speed is independently controllable; test element is engaged with the surface; and the first and second speeds are different so that the test element slips over the surface with a slip speed.

摘要翻译： 提供了一种摩擦测试仪，其能够以与摩擦测试仪的行进速度无关的滑动速度测量由表面提供的摩擦。 该摩擦测试仪包括能够以第一速度在表面上行进的车辆和被驱动至第二速度的测试元件以及测量装置，其中第二速度是独立可控的; 测试元件与表面接合; 并且第一和第二速度不同，使得测试元件以滑动速度在表面上滑动。

公开(公告)号：EP2956889A1

公开(公告)日：2015-12-23

申请号：EP14701831.1

申请日：2014-01-24

申请人： W.D.M. Limited

发明人： GARDINER, John Leslie ,  LAGO, Richard Dal

IPC分类号： G06K9/00 ,  E01C23/01 ,  G01C7/04

CPC分类号： G06K9/00798 ,  E01C23/01 ,  G01C7/04 ,  G01S19/13 ,  G06K9/00825 ,  H04N5/222

摘要： An apparatus is provided that is operable as a road marking analyser, comprising a light source arranged to illuminate a road, a camera directed or arranged to view vertically downward in a direction substantially perpendicular to a surface of the road and arranged to capture an image of one or more road markings on the road and a processor arranged to output the captured image to a memory and/or process the image to determine a condition of the one or more road markings.

公开(公告)号：EP2136177A1

公开(公告)日：2009-12-23

申请号：EP09162334.8

申请日：2009-06-09

申请人： W.D.M. Limited

发明人： Gardiner, John ,  Willis, Ian

IPC分类号： G01B11/25 ,  G01C7/04 ,  E01C23/01

CPC分类号： G01C7/04 ,  E01C23/01

摘要： An apparatus for measuring surface properties of a carriageway or road, comprising a platform arranged to move over the carriageway, the platform carrying a light source arranged to illuminate the carriageway, and a detector arranged to receive light returning from the carriageway, characterised in that the light source projects a line of light onto the surface, the line of light being parallel to the direction of travel, and data representing light returning from the line of light is captured and stored. The displacement of the vehicle between two successive measurements is estimated from the cross-correlation of the two successively measured profiles.

摘要翻译： 一种用于测量行车道或道路的表面特性的装置，包括布置成在车道上移动的平台，承载布置成照亮车道的光源的平台和布置成接收从车道返回的光的检测器，其特征在于， 光源将光线投射到表面上，光线平行于行进方向，并且捕获并存储表示从光线返回的光的数据。 根据两个连续测量轮廓的互相关估计两次连续测量之间的车辆位移。